<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width,initial-scale=1.0">
  <title>海底小纵队</title>
</head>

<style>
  * {
    margin: 0;
    padding: 0;
  }

  html, body {
    width: 100%;
    height: 100%;
  }

</style>

<body>
<div id="app">

</div>
</body>
</html>
